Master sheet laying device for duplicating machines



July 9, 1935. 2,007,247

MASTER SHEET LAYING DEVICE FOR DUPLIgATING MACHINES I J. W. HERNLUND ET AL Filed Sept. 4, 1934 9 Sheets-Sheet 1 July 9, 1935. J.'w. HERNLUND EI'AL 2,007,247

MASTER SHEET LAYING DEVICE FOR DUPLIGA TI NG MACHINES Filed Sept. 4, 1934 9 Sheets-Sheet 2 July 9, 1935. 2,007,247

MASTER'SHEET LAYING DEVICE FOR DUPLICATING MACHINES J. W. HERNLUND ET AL Filed Sept. 4, 1934 9 sheets-sheet 5 9 Sheets-Sheet 4 .Zfi/ezzfofs: .Jkn Zzflferzzlzuea',

J. W. HERNLUND ET AL F iled Sept. 4, 1934 MASTER SHEET LAYING DEVICE FOR DUPLICATING MACHINES July 9, 1935.

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MASTER SHEET LAYING DEVICE FOR DUPLI EATING MACHINES Filed Sept. 4, 1954 9 Shgets-Sheet 5 h Z72 Jew {0719: n faim gdflerzzlana Jarrett fizewart @Wazmzm July 9, 1935. J. w. HERNLUND ET AL 2,007,247

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MASTER SHEET LAYING DEVICE FOR DUPLICATING MACHINES J. W. HERNLUND AL 9 Sheets-Sheet '7 a a k Filed Sept. 4, 1934 July 9, 1935. J. w. HERNLUND El" AL MASTER SHEET LAYING DEVICE FOR DUPLICA'IING MACHINES Filed Sept. 4, 19 4 9 Sheets-Sheet 8 J. w. HERNLUND ET AL 2,007,247

MASTER SHEET LAYING DEVICE FOR DUPLICATING MACHINES July 9, 1935.

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Patented Jul 9, 1935 PATENT "OFFICE-j MIASTER'ISHIZEET LAYING DEVICE FOR" DUPLIOATING MACHINES John W.v HernIumL'La Grange, and Merritt G.

Stewart, Chicago, Ill., assignors to Ditto, In-

- corporated, Chicago,

Virginia 111., a corporation of West Application September 4, 1934,- Serial No. 742,606 19 Claims. (Cl.101-1? 3) This invention relates to duplicating machines and more particularly to a mechanismfor laying a plurality of master sheets .upon a duplicating surface such, for example, as theusual hectograph,or gelatin band. 5

, In keeping. the business records of certain types of enterprises, it-is very often necessary to make cross references from one'record to another when it is desired todetermine certain results for, totals. For example; in connection with-oilwells, where an operating company may be keeping records upon several :wells so as to know the amount of expense in connection with each well, this same operating company keeps records under the heading'of .the employees so that'theylmay know the amount of Wages paid to any individual employee. In such a case the operating company would have a record sheet which might have at one side, a row of names of employees, While across the top each well would be given a numberof columns, two or three for example, and there would be such'a rec'ordsheet for each day. Thus, we might have I a worker being given credit for, say, three hours work at Well No.1 at a certain wage per hour, so thatopposite hisname, and under'the columns markedi well No. l, the hours employedwo-uld ,beentered, the wage paidwould be entered, and the total amount due the employee would be entered. On the same day that employee might work also at Well No. 3. There he would, perhaps, put in four hours and he might not have the same Wage scale, or he might receive the same pay, so again, under Well No. 3, opposite the mans name, would be entered the hours of work, thepay per hour and the total.

'It is evident from the above description, that when itis necessary to arrive at the total expenses for each individual 'well, the record, if it isito be condensed, must needs be copied oil of these general sheets upon a separate sheet, simi larly' such copy work must be employed to keep the permanent records of the individual men.

5 It'is' the purpose of this invention to provide means whereby these original record sheets may be madewith copying ink, and-thereafter the transfers from the originals made by cutting up the original, or master sheets, ofwhich'th'ere may be duplicates made for this purpose, into columns or sections and reassembling-these sections so as to produce alllthe required data such, for example, asthe required data concerning Well No. 1, upon a single copy. M l

It mustbeunderstood, of course, that the example given here, is merely to indicate the use to which the. mechanism to be hereinafter described is applied in connection with the duplicating process.- A 1 The handling of narrow strips 02 master sheets involves considerable difficulty in properly assembling them side by side, or in over-lapping re- ,5

lationship as required. So in order to be able to properly alignthese strips and over-lap them if desired, the original sheets which are to be dividedup, are all punched alike, withv rows of holes along the opposite side edges or end edges, as the case may be. These holes in the sheets are utilized, after the records are placed upon the sheets and the sheets are cut into separate sections, to align the sheets upon a master laying device in a manner which will be presently described, e I, I x e e e Z The preferred form of the invention will. be described by I reference to the accompanying drawings wherein; e

Fig. 1 is an assembled view partly in section, showing the master sheet laying mechanism as applied to a hectograph machine of theflat bed plate type.

Fig. 2 is an enlarged sectional view taken on the line 2-2 of Fig. '1.

- Fig. 3 is a side elevation partlyin-section. of theppulley mechanism shown in section in Fig. 2.

Fig. 4 is a plan View of the machine with certain parts left out for sake of clearness.

Fig. 5 is a side elevation of the master sheetlaying carriage. v

Fig. 6 is a sectional view taken on the line 6-6 of Fig. 5.

Fig. '7 is a sectional view taken on the line 1-1 of Fig. 5. I 7

I Fig. 8 is a vertical section taken through. one sideof; the master sheet laying carriage substantially on the line 88of Fig. 11. V

- Fig.9 is a fragmentary sectional view taken substantially. on the line 9-9 of Fig. 11.

Fig. 10 is'an enlarged sectional view of a de-' tail of the mechanism for locking the laying carriage in home position.

Fig." 11 is a vertical sectional viewtaken on the line'H--ll of Fig. 8. I

Fig. 12 is a vertical sectional View taken on the line l2l2 of Fig. 8.

Fig. 13 is a sectional view taken on the line l3'l3 of Fig. 11'.

Fig. 14 is a view like Fig. 13 but at the end of the master sheet laying travel of the carriage.

Fig. 15 .is a section on the line |5-|5 of Fig. 11 showing the mechanism at the start of the laying operation. 1

Fig. 16 is an. enlarged fragmentary sectional view showing a changed position to that illustrated in Fig. 15.

Fig. 17 is a plan view of part of the bed plate and frame of the duplicating machine showing the master sheets as they are placed upon the duplicating band. 7

Fig. 18 is a sectional view on the line l3-|8 of Fig. 17.

Fig. 19 is a view like l8 with certain of the.

parts in changed positions, and

Fig. 20 is a view like Fig. 18 showing the manner in which the margin bar is used in removing the master sheets from the duplicating band.

Referring now in detail to thedrawings, the

machine to which this invention is applied is illustrated roughly in Fig. 1 as a duplicating machine of the flat bed type.

In the machine as shown F indicates the frame of the machine. P indicates the printing bed. H indicates the hectograph band which may be wound on suitable rollers at opposite ends of the machine in the well known manner. The copying carriage is indicated in dotted lines at E, and the master sheet laying carriage is indicated by M.

The duplicating machine may have the well known parts, such for example, as a standard margin bar, and the copying carriage may, of

, course, have the platen roller and other elements such as are commonly found in machines of this character. These features, however, form no part of the present invention and will not be described further except where it is necessary to mention them to make the operation of the device embodying the invention clear.

By reference to Fig. 1 it will be noted that the carriage M is lifted by means of suitable arms such as 28 from the full line position to the dotted line position shown in Fig. 1. This is accomplished in the following manner:

Upon the bracket 2| secured to the frame of the machine, the arm 23 is pivoted and a lever 22 is fixed to the arm 20. This lever is connected by means of the cable 23 to the pulley 24; The cable passes around a suitable guide pulley 25 and is carried inside the frame as shown in Fig. 1, to the pulley 24 where it is clamped inplace by means of the clamp 26. Pulley 24 is fixed to the gear wheel 21 which meshes with the worm gear 23 on shaft 29. Shaft 29 projects from the frame housing and is provided with a handle 30 by means of which it may be rotated.

From the above description it is evident that when the carriage M is secured to the arms 20, of which there are two, the handle 30 may be turned to wind the cable 23 upon the pulley 24. This raises the carriage into the dotted line position shown in Fig. 1 so as to permit the use of the printing bed P and the hectograph band'I-I with the usual carriage for making copies from the hectograph band.

Now when it is desired to assemble master sheets of the kind herein before referred to and apply them to the duplicating band the carriage M is brought down upon the frame F where these wheels, such as 3| and 32, ride upon the rails 33 and 34 mounted on the frame of the machine.

The carriage M is released from the arms'lfl by lifting up the latch bar such as 35 out of the notch 36 provided in the pin at the end of the arm 10. It is understood of course, that there are two latch bars 35, one for each arm, but the lifting up of one latch bar releases both of them because they are connected together by'means of the link 31. (See Figs. 4 and 7.)

With the carriage end released it can be moved to the left from the position shown in Fig. 1 t0 the limiting position shown in Fig. 5. At this point the projection 38 on the frame is engaged by the arm 39 pivoted on the carriage M and yieldingly pressed down by means of the spring 40. The carriage M is locked in this position by means of the locking lever 4|. (See Figs. 5, 6, and 11.)

Lever 4!, as shown, is pivoted to the carriage frame at, and has a projection 43 which carries'the pin 44. Slidable in the carriage frame, is the manually operable pin and this pin, is normally pulled out to position shown in Fig. 11 so as to hold the lever 4| away from the member 39.

However, when the carriage M is in the position shown in Fig. 5 and the operator wishes to lock it there while he puts the master sheet on the carriage, he pushes the pin 45 into the position shown in Fig. 6 so that the pin 44 drops down into the groove 45 of the pin 45. This lets spring 41 move the lever 4| over on top of the member 39 to lock the carriage in position.

The carriage M carries a drum member 48 on which the master sheets are mounted. This drum member has the shape of a segment of a cylinder and at one edge running lengthwise of the cylinder there is provided a row of securing pins 49, which pins project through slots (as indicated at 53 in Fig. 5) in the edge of the drum. This edge of the drum is extended as a sheet and turned under as indicated at 5!, thus providing a channel which runs lengthwise of the drum. The pins 49 are supported in the heavier channel member 52 which is mounted on the drum frame justv inside the member 5|.

Springs 53 and collars 54 co-operate to force the pins outward normally and to permit them to be pushed inwardly by pressure on their outer ends.

The operator of the machine. in assembling the master sheets, places them on the drum with the record containing side facing outwardly and with the openings at the ends of the sheets fitted over the pins such as 49. The record sheets are shown in place in Fig. 5 and indicated by the numeral 55.

When the operator has secured the one end of each record sheet in place on the pins 49 he turns the drum in a clockwise direction as shown in Fig. 5 so as to gradually press the record sheets smoothly, down on the drum throughout the length of the sheets.

A roller. 56 mounted on the carriage M by means'of the arms, such as 51, co-operates with the dnnn surface to roll the master sheets down smooth. At the beginning of the advancement of the drum the roller is moved backby means of the pins 49 against the tension of the spring 58 to the position shown in dotted lines in Fig. 5 and there is passed over the pins due to the fact that it is off center with respect to the drum and thereafter it continues to roll the master sheets down smoothly. When the drum is rotated to its limit in a clockwise direction the stop member 59 strikes the pin 45. At this instant the pins 49 are in the position shown in Fig. 9; that is, they align with corresponding pins 60 mounted upon the master sheet margin bar 6|. The details of this margin bar will be more clearly explained hereinafter.

With the pins 49 and 60 directly aligned with each other, the next step in the operation is to transfer the master sheets from the pins 49 to r 2,007,247 the pins66.- Before describing that, however, it

These pins 62 are all carried upon a bar 63 (see Figs. 12 and 16).?The pins also work through slots provided in the edge-of the drum sheet in the same fashion that pins 49d0. The bar 63 is supported at its opposite ends by a pair of pins 64 and 65. These pins are carried by the channel member 66 and are movable in and out with respect'to the channel memberwithin the limits permitted. by the collars 61 and 68 and the springs 69 and I6. For actuating the pins 64 and 65 there is provided 'a bar'II which has rollers I2 and I3 adaptedto engage the stripping cams I4 and I5.

'Going back now, to the operation whereby the master sheets are transferred from pins 49 to pins 66, it will be'noted from an inspection of Fig. 8

that the upper, or drum carrying portion of 16 of the carriage M is spaced above the lower portion I'Ithereof in Fig.5 and in Fig. 9, while in Fig. 8 the portion I6 has been forced down until it contacts the portion II. The operator does this manually by pressing down upon the carriage so as to compress thesprings IBand 19 which are seated in the recessed member 11 and encircle the mounting pins 86 and SI. When the entire drum supporting structure is thus depressed, the

pressure of the frame I6 thus'prepares the carriage for its rolling operation to spread the master sheets out upon the duplicating band.v

to advance.

By referring to Fig; Sand Fig. 11, the manner in which the carriage M is released. so that it can be advanced will be more clearly understood in connection with the following description:

'As shown in Fig. 6, the frame I6 has mounted thereon the latch 82 which is notched as indicated at 83, and, when the member I6 is pressed down, this notch passes below the edge of the shoulder 84 and snaps into place was to latch the member I6 in itslowered position. The spring 85, of course, urges the latching member in the proper direction so as to hold it in place as soon as it snaps over the shoulder 84. There is a latching member -on each side of the machine, as is shown clearly by Fig. 11. 1: The operator next pulls out the pin so as, to throw the lever4l out of locking position, and the carriage is ready By pushing the carriage the member 39 is caused to ride over the stop 38 since it is no longer locked'in position and the. carriage is moved from left to right; that is, from the'position shown in Fig. 13 to that shown in Fig.14. As the carriage nears the position shown in Fig. 14 the rollers .12 and I3 engage on their respective cammembers Hand 15 andthepins :64 and 65 are drawn inward to withdraw the V theedges of g the master sheets'will not be dam-- aged. This isaqcomplishedbyjproyiding; on the drum member, a pair-of cams 86 .and 81, which cams engage the rollers 88 and 69 which are mounted onthe bell crank levers 66 and SH fixed to the lower frame member 11 of the carriage and connected by links 92 and 93 with the latch members 83; I 1 v It isbelieved to be evident from an inspection of Fig. 11 that pressure. downward'upon the roll-1 I ars 88 will pull the latch members 83 out of latching position and permit the drum mechanism to rise to original position. v v

In order that the drum itself willnot tend to rotate out of its limiting'positions, the drum mounting shaft 94 (see Fig. 12) has a collar 65 thereon which carries .a spring pressed 'ball96 that is adapted to seat itself in the depressions 91 and 98 in the two limiting positions of the drum.

After the cams 86 and BI permit the drum to rise the entire carriage M is shoved on further along the frame until the pins on the ends of the frames 26 extend into the sockets on the carriage and thus secure the carriage to the arms 26. The operator. then can lift the carriage by turning the'crank 36 andwhen the master sheets are removed from the gelatin band he will be ready to use the regular copy carriage E for making copies off the impression made on the gelatin band. The master sheets are stripped off the gelatin band by utilizing the special master sheet margin bar 6I.- frame and is positioned at its opposite ends by means of the projections I66 and I6I on the frame which stick up through holes provided in the margin bar. The margin bar has a clamping section'I62' hinged'to the main section which carries the pins and this clamping section is normally in the position shown in Fig. 18, for example, where the stop I63 striking the apron I64 on'thepin carrying portion of the margin bar limits the downward movement of the portion I62. When it is desired to remove the master sheets from the gelatine band however, the hinged portion I62 is folded over into the position shown in Fig. 19 and the entire margin bar is lifted up as indicated in Fig. 20 to lift the master sheets off of the gelatin band. It will be noted that the edge of the margin bar at 165, closest to the gelatin band, is tapered so as to get the pins thereon as close as possible to the gelatin band. Of course after the master sheets and. specialmargin bar are removed thecarriage E may be used-to produce copies from the gelatin band'in the usual manner.

In placing the master sheets on the drum 48 it is evident that where sheets are laid over one another as shown in Fig. 16 at 55 and 55- the outer sheet must traverse a greater distance between the pins 49 and 62 than the distance between these pins along the drum surface because of the thickness added by the inner sheet. To take care of this matter and inequalities in punching sheets a limited amount of adjustment of pins 62 is provided. 'Bar 66 iscarried by arms I01 and I68 which are pivoted on the hubs of the drum48 as shown at I69 and III) in Figs. 12, 15 and 16. The arms I61 and I68'aresecured imposition by means of screw bolts, III which pass through openings I I2 in the hub por tions of the arms, andare threaded into the drum hubs. Plates H3 and, H4 are held in place by the screw bolts, and'prevent the'arm hubs from sliding over the heads of screw boltsI I I. It will .be noted-that the openings II2 are somewhat This margin bar rests on the,

larger than the bolts III. This permits a limited amount of turning of the arms and therefore of the pins 62 with respect to the drum. The springs H5 interposed between the drum frame and projections ill on the arms. I01 and I08 hold the arms and pins 62 normally in the position shown in Fig. 15 but permit them to move slightly as shown in Fig. 16 to fit the holes in the outer sheets such as 55 over the pins 62.

While certain embodiments of the invention have been shown and desired, it is to be understood that it is capable of many modifications. Changes, therefore, in the construction and arrangement may be made without departing from the spirit andthe scope of the invention as disclosed in the appended claims in which it is the intention to claim all novelty inherent in the invention as broadly as possible in view of the prior art.

The invention having thus been described, what is claimed as new and desired to be secured by Letters Patent is:

I. A duplicating machine having a main frame, a duplicating surface thereon, a master sheet layingcarriage, and a copy sheet laying carriage, and means for moving one of said carriages up from the duplicating surface out of the path of the other.

2. A duplicating machine having a main frame, a duplicating surface thereon, a master sheet laying carriage having means thereon for mounting a plurality of master strips, record side up, and holding them assembled as a unit, and means for inverting the assembled strips to apply them to the duplicating surface.

3. A duplicating machine having a main frame, a duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a plurality of master sheets, printed side up, and inverting them and laying them upon the duplicating surface.

4. A duplicating machine having a main frame, a duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a plurality of master sheets, printed side up, and inverting them and laying them upon the duplicating surface, said means comprising a drum having mounting means for said sheets.

5. A duplicating machine having a main frame, a duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a plurality of master sheets, printed side up, and inverting them and laying them upon the duplicating surface, said means comprising a drum having mounting means for said sheets, and a carriage movable over the frame, said drum being rotatably mounted on said carriage.

6. A duplicating machine having amain frame, a. duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a plurality of master sheets, printed side up, and inverting them and laying them upon the duplicating surface, said means comprising a drum having mounting means for said sheets, and a carriage movable over the frame, said drum being r'otatab-ly mounted on said carriage, and vertically movable on said carriage.

7. A duplicating machine having a main frame, a duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a plurality of master sheets, printed side up, and inverting themand laying them upon the duplicating surface, said means comprising a drum having mounting means for said sheets consisting of opposed rows of mounting pins on which openings in the master sheets may be threaded.

8. A duplicating machine having a main frame, a duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a plurality of master sheets, printed side up, and inverting them and laying them upon the duplicating surface, said means comprising a drum having mounting means for said sheets consisting of opposed rows of mounting pins on which openings in the master sheets may be threaded, said pins being movable radially inward with respect to said drum.

9. A duplicating machine having a main frame, a duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a. plurality of master sheets, printed side up, and inverting them and laying them upon the duplicating surface, said means comprising a drum having mounting means for said sheets consisting of opposed rows of mounting pins on which openings in the master sheets may be threaded, and means providing for circumferential movement of one row of pins with respect to the other.

10. A duplicating machine having a main frame, a duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a plurality of master sheets, printed side up, and inverting them and laying them upon the duplicating surface, said means comprising a drum having mounting means for said sheets consisting of opposed rows of mounting pins on which openings in the master sheets may be threaded, and a margin bar on said frame having pins cooperating with the drum pins to transfer the assembled sheets to said duplicating surface.

11. A duplicating machine having a main frame, a duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a plurality of master sheets, printed side up, and inverting them and laying them upon the duplicating surface, and a removable margin bar having means receiving one end of said sheets from the laying device.

12. A duplicating machine having a main frame, a duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a plurality of master sheets, printed side up, and inverting them and laying them upon the duplicating surface, and a removable margin bar having means receiving one end of said sheets from the laying device, said margin bar having gripping means thereon to hold the sheets assembled for stripping them from the duplicating surface.

13. A duplicating machine having a main frame, a duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a plurality of master sheets, printed side up, and inverting them and laying them upon the duplicating surface, said means comprising a drum having mounting means for said sheets consisting of opposed rows of mounting pins on which openings in the master sheets may be threaded, said pins being movable radially inward with respect to said drum, and a margin bar on said frame having pins oooperating with the drum pins to transfer the assembled sheets to said duplicating surface.

14. A duplicating machine having a main frame, a duplicating surface thereon, and a master sheet assembling and laying device comprising means for securing together a plurality of master sheets, printed side up, and inverting them during downward movement of the drum.

15. A duplicating machine having a main frame, a duplicating surface thereon, a master sheet laying carriage having means thereon for mounting a plurality of master strips, record side up, and holding them assembled as a unit, and

means for'inverting the assembled strips to apply them -to the duplicating surface, said means comprising a drum having sheet securing means thereon.

16. A duplicating machine having a main frame, a duplicating surface thereon, a master sheet laying carriage having means thereon for mounting a plurality of master strips, record side up, and holding them assembled as a unit, and means for inverting the assembled strips to apply them to the duplicating surface, said means comprising a drum having sheet securing means thereon, said drum being vertically movable to bring the sheets thereon down upon the duplicating surface.

17. A duplicating machine having a main frame, a duplicating surface thereon, a master sheet laying carriage having means thereon for mounting a plurality of master strips, record side up, and holding them assembled as a unit, and means for inverting the assembled strips to apply them to the duplicating surface, said means comprising a drum having sheet securing means thereon, said drum being vertically movable to bring the sheets thereon down upon the duplicating surface, and. locking means for locking the drum in lowered position.

18. A duplicating machine having a main frame, a duplicating surface thereon, a master sheet laying carriage having means thereon for mounting a plurality of master strips, record side up, and holding them assembled as a unit, and means for inverting the assembled strips to apply them to the duplicating surface, said means comprising a drum having sheet securing means thereon, said carriage being movable over the duplicating surface to transfer the sheets from the drum to the duplicating surface.

19. In a duplicating machine, a supporting device for master sheets having means to secure a plurality of strips of master sheets thereon with the printed side up, and a margin bar having means thereon to receive and hold one end of the assembled sheets, said bar cooperating with said device to position the assembled sheets face down on the duplicating surface.

JOHN W. HERN'LUND. MERRITT G. STEWART. 

